The prostate, an organ located under the bladder, produces semen. Prostate cancer is the second most common cancer among men in the United States. About 1 in 9 men will be diagnosed with prostate cancer in their lifetime.

The risk of developing prostate cancer progressively increases with age. About 60 percent of all prostate cancers in the United States are diagnosed in men aged 65 or older. It is rare for men to develop prostate cancer before age 40.

Tomatoes, watermelon, and other red foods owe their bright color to a powerful antioxidant called lycopene. Some recent studies show that men who consume this fruit and tomato-based products have a lower risk of prostate cancer than those who don’t. However, the American Institute for Cancer Research cautions that studies linking tomatoes to prostate cancer prevention are limited and ongoing.

A 2018 study from Spain suggest that cooking tomatoes makes it easier for your body to absorb lycopene. The redder the tomato, the better because lycopene accumulates during ripening. That means that pale, store-bought tomatoes that are picked too early have less lycopene than vine-ripened tomatoes.

Nutrients and vitamins contained in fruits and vegetables may lower your risk of getting prostate cancer. Green vegetables contain compounds that help your body break down cancer-causing substances called carcinogens. A nutrient-rich diet may also help slow the spread of cancer.

By eating fruits and vegetables throughout the day, you’ll be less likely to fill up on processed junk food.

Researchers have long studied the link between green tea and prostate cancer risk, with mixed results. A 2008 study showed that men who drink green tea, or take green tea extract supplements, have a lower risk of advanced prostate cancer than those who don’t.

A 2010 review of clinical studies showed that the cell and animal research confirms a link between the key ingredients of green tea and a lower risk of prostate cancer. It noted that further human clinical trials are needed.

Indulging a serious coffee habit is linked to a decreased risk of fatal prostate cancer:

Drinking four to five cups of coffee every day can lower your chances of fatal and high-grade prostate cancer, according to a 2014 review of clinical studies.

Regardless of how many cups you drink overall, every three cups of coffee you drink can reduce your risk of fatal prostate cancer about 11 percent.

This describes a dose-response relationship between prostate cancer and coffee. That means the effect on prostate cancer goes up or down with the amount of coffee you drink. These effects may not extend to someone who only grabs an occasional cup.

However, high doses of caffeine can cause major health issues, such as irregular heartbeat and seizures. The Mayo Clinic cautions against ingesting more than 400 milligrams of caffeine a day, the equivalent of four cups of brewed coffee.

How coffee is prepared can also be a factor. A 2015 study in Norway looked at coffee brewed with a filter, and boiled coffee, which doesn’t use such a filter. Men who drank boiled coffee seemed to have a lower risk of prostate cancer than men who drank coffee prepared another way or not at all.

The chemicals cafestol and kahweol have well-known cancer-fighting abilities. Researchers believe these chemicals are trapped when coffee runs through a paper filter. Boiled coffee may allow these cancer-fighting chemicals to stay in your daily brew.

A 2014 study notes there may be a link between animal fats and an increased risk of prostate cancer. In addition to meat, animal fats are found in lard, butter, and cheese. Whenever possible, replace animal-based fats with plant-based fats.

This, instead of that:

olive oil instead of butter

fruit instead of candy

fresh vegetables instead of prepackaged foods

nuts or seeds instead of cheese

Also, overcooking meat produces carcinogens, so be careful not to overcook your meat.

Fish and omega-3

Fatty acid, known as omega-3, may help reduce your risk of developing prostate cancer. Omega-3 is found in certain fish including sardines, tuna, mackerel, trout, and salmon.

There was a study in 2013 that suggested that men with high concentrations of omega-3 fatty acids in their blood are more likely to develop prostate cancer.

However, more current research in 2015 found some problems with the research and stated that the study actually did not establish a link between increased intake of omega-3 and increased risk of prostate cancer.

Based on this controversial information, it is best to check with your doctor to discuss what is the best choice for you.

Folate is found in many foods, including green vegetables, beans, whole grains, and fortified breakfast cereals. The American Cancer Society recommends getting adequate amounts of folate through eating a variety of these foods.

Dairy

Some studies, according to the Mayo Clinic, have linked dairy products, or diets high in calcium, with an increased risk of prostate cancer. However, studies have been mixed, and this risk is considered minimal.